[deb_libnfs.git] / lib / pdu.c

/*
   Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published by
   the Free Software Foundation; either version 2.1 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef AROS
#include "aros_compat.h"
#endif

#ifdef WIN32
#include "win32_compat.h"
#else
#include <strings.h>
#endif/*WIN32*/

#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif

#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include "slist.h"
#include "libnfs-zdr.h"
#include "libnfs.h"
#include "libnfs-raw.h"
#include "libnfs-private.h"

struct rpc_pdu *rpc_allocate_pdu(struct rpc_context *rpc, int program, int version, int procedure, rpc_cb cb, void *private_data, zdrproc_t zdr_decode_fn, int zdr_decode_bufsize)
{
	struct rpc_pdu *pdu;
	struct rpc_msg msg;

	assert(rpc->magic == RPC_CONTEXT_MAGIC);

	pdu = malloc(sizeof(struct rpc_pdu));
	if (pdu == NULL) {
		rpc_set_error(rpc, "Out of memory: Failed to allocate pdu structure");
		return NULL;
	}
	memset(pdu, 0, sizeof(struct rpc_pdu));
	pdu->xid                = rpc->xid++;
	pdu->cb                 = cb;
	pdu->private_data       = private_data;
	pdu->zdr_decode_fn      = zdr_decode_fn;
	pdu->zdr_decode_bufsize = zdr_decode_bufsize;

	zdrmem_create(&pdu->zdr, rpc->encodebuf, rpc->encodebuflen, ZDR_ENCODE);
	if (rpc->is_udp == 0) {
		zdr_setpos(&pdu->zdr, 4); /* skip past the record marker */
	}

	memset(&msg, 0, sizeof(struct rpc_msg));
	msg.xid                = pdu->xid;
        msg.direction          = CALL;
	msg.body.cbody.rpcvers = RPC_MSG_VERSION;
	msg.body.cbody.prog    = program;
	msg.body.cbody.vers    = version;
	msg.body.cbody.proc    = procedure;
	msg.body.cbody.cred    = rpc->auth->ah_cred;
	msg.body.cbody.verf    = rpc->auth->ah_verf;

	if (zdr_callmsg(&pdu->zdr, &msg) == 0) {
		rpc_set_error(rpc, "zdr_callmsg failed");
		zdr_destroy(&pdu->zdr);
		free(pdu);
		return NULL;
	}

	return pdu;
}

void rpc_free_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu)
{
	assert(rpc->magic == RPC_CONTEXT_MAGIC);

	if (pdu->outdata.data != NULL) {
		free(pdu->outdata.data);
		pdu->outdata.data = NULL;
	}

	if (pdu->zdr_decode_buf != NULL) {
		zdr_free(pdu->zdr_decode_fn, pdu->zdr_decode_buf);
		free(pdu->zdr_decode_buf);
		pdu->zdr_decode_buf = NULL;
	}

	zdr_destroy(&pdu->zdr);

	free(pdu);
}


int rpc_queue_pdu(struct rpc_context *rpc, struct rpc_pdu *pdu)
{
	int size, recordmarker;

	assert(rpc->magic == RPC_CONTEXT_MAGIC);

	size = zdr_getpos(&pdu->zdr);

	/* for udp we dont queue, we just send it straight away */
	if (rpc->is_udp != 0) {
// XXX add a rpc->udp_dest_sock_size  and get rid of sys/socket.h and netinet/in.h
		if (sendto(rpc->fd, rpc->encodebuf, size, MSG_DONTWAIT, rpc->udp_dest, sizeof(struct sockaddr_in)) < 0) {
			rpc_set_error(rpc, "Sendto failed with errno %s", strerror(errno));
			rpc_free_pdu(rpc, pdu);
			return -1;
		}
		SLIST_ADD_END(&rpc->waitpdu, pdu);
		return 0;
	}

	/* write recordmarker */
	zdr_setpos(&pdu->zdr, 0);
	recordmarker = (size - 4) | 0x80000000;
	zdr_int(&pdu->zdr, &recordmarker);

	pdu->outdata.size = size;
	pdu->outdata.data = malloc(pdu->outdata.size);
	if (pdu->outdata.data == NULL) {
		rpc_set_error(rpc, "Out of memory. Failed to allocate buffer for pdu\n");
		rpc_free_pdu(rpc, pdu);
		return -1;
	}

	memcpy(pdu->outdata.data, rpc->encodebuf, pdu->outdata.size);
	SLIST_ADD_END(&rpc->outqueue, pdu);

	return 0;
}

int rpc_get_pdu_size(char *buf)
{
	uint32_t size;

	size = ntohl(*(uint32_t *)buf);

	return (size & 0x7fffffff) + 4;
}

static int rpc_process_reply(struct rpc_context *rpc, struct rpc_pdu *pdu, ZDR *zdr)
{
	struct rpc_msg msg;

	assert(rpc->magic == RPC_CONTEXT_MAGIC);

	memset(&msg, 0, sizeof(struct rpc_msg));
	msg.body.rbody.reply.areply.verf = _null_auth;
	if (pdu->zdr_decode_bufsize > 0) {
		if (pdu->zdr_decode_buf != NULL) {
			free(pdu->zdr_decode_buf);
		}
		pdu->zdr_decode_buf = malloc(pdu->zdr_decode_bufsize);
		if (pdu->zdr_decode_buf == NULL) {
			rpc_set_error(rpc, "zdr_replymsg failed in portmap_getport_reply");
			pdu->cb(rpc, RPC_STATUS_ERROR, "Failed to allocate buffer for decoding of ZDR reply", pdu->private_data);
			return 0;
		}
		memset(pdu->zdr_decode_buf, 0, pdu->zdr_decode_bufsize);
	}
	msg.body.rbody.reply.areply.reply_data.results.where = pdu->zdr_decode_buf;
	msg.body.rbody.reply.areply.reply_data.results.proc  = pdu->zdr_decode_fn;

	if (zdr_replymsg(zdr, &msg) == 0) {
		rpc_set_error(rpc, "zdr_replymsg failed in portmap_getport_reply");
		pdu->cb(rpc, RPC_STATUS_ERROR, "Message rejected by server", pdu->private_data);
		if (pdu->zdr_decode_buf != NULL) {
			free(pdu->zdr_decode_buf);
			pdu->zdr_decode_buf = NULL;
		}
		return 0;
	}
	if (msg.body.rbody.stat != MSG_ACCEPTED) {
		pdu->cb(rpc, RPC_STATUS_ERROR, "RPC Packet not accepted by the server", pdu->private_data);
		return 0;
	}
	switch (msg.body.rbody.reply.areply.stat) {
	case SUCCESS:
		pdu->cb(rpc, RPC_STATUS_SUCCESS, pdu->zdr_decode_buf, pdu->private_data);
		break;
	case PROG_UNAVAIL:
		pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Program not available", pdu->private_data);
		break;
	case PROG_MISMATCH:
		pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Program version mismatch", pdu->private_data);
		break;
	case PROC_UNAVAIL:
		pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Procedure not available", pdu->private_data);
		break;
	case GARBAGE_ARGS:
		pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Garbage arguments", pdu->private_data);
		break;
	case SYSTEM_ERR:
		pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: System Error", pdu->private_data);
		break;
	default:
		pdu->cb(rpc, RPC_STATUS_ERROR, "Unknown rpc response from server", pdu->private_data);
		break;
	}

	return 0;
}

int rpc_process_pdu(struct rpc_context *rpc, char *buf, int size)
{
	struct rpc_pdu *pdu;
	ZDR zdr;
	int pos, recordmarker = 0;
	unsigned int xid;
	char *reasbuf = NULL;

	assert(rpc->magic == RPC_CONTEXT_MAGIC);

	memset(&zdr, 0, sizeof(ZDR));

	zdrmem_create(&zdr, buf, size, ZDR_DECODE);
	if (rpc->is_udp == 0) {
		if (zdr_int(&zdr, &recordmarker) == 0) {
			rpc_set_error(rpc, "zdr_int reading recordmarker failed");
			zdr_destroy(&zdr);
			return -1;
		}
		if (!(recordmarker&0x80000000)) {
			zdr_destroy(&zdr);
			if (rpc_add_fragment(rpc, buf+4, size-4) != 0) {
				rpc_set_error(rpc, "Failed to queue fragment for reassembly.");
				return -1;
			}
			return 0;
		}
	}

	/* reassembly */
	if (recordmarker != 0 && rpc->fragments != NULL) {
		struct rpc_fragment *fragment;
		uint32_t total = size - 4;
		char *ptr;

		zdr_destroy(&zdr);
		for (fragment = rpc->fragments; fragment; fragment = fragment->next) {
			total += fragment->size;
		}

		reasbuf = malloc(total);
		if (reasbuf == NULL) {
			rpc_set_error(rpc, "Failed to reassemble PDU");
			rpc_free_all_fragments(rpc);
			return -1;
		}
		ptr = reasbuf;
		for (fragment = rpc->fragments; fragment; fragment = fragment->next) {
			memcpy(ptr, fragment->data, fragment->size);
			ptr += fragment->size;
		}
		memcpy(ptr, buf + 4, size - 4);
		zdrmem_create(&zdr, reasbuf, total, ZDR_DECODE);
		rpc_free_all_fragments(rpc);
	}

	pos = zdr_getpos(&zdr);
	if (zdr_int(&zdr, (int *)&xid) == 0) {
		rpc_set_error(rpc, "zdr_int reading xid failed");
		zdr_destroy(&zdr);
		if (reasbuf != NULL) {
			free(reasbuf);
		}
		return -1;
	}
	zdr_setpos(&zdr, pos);

	for (pdu=rpc->waitpdu; pdu; pdu=pdu->next) {
		if (pdu->xid != xid) {
			continue;
		}
		if (rpc->is_udp == 0 || rpc->is_broadcast == 0) {
			SLIST_REMOVE(&rpc->waitpdu, pdu);
		}
		if (rpc_process_reply(rpc, pdu, &zdr) != 0) {
			rpc_set_error(rpc, "rpc_procdess_reply failed");
		}
		zdr_destroy(&zdr);
		if (rpc->is_udp == 0 || rpc->is_broadcast == 0) {
			rpc_free_pdu(rpc, pdu);
		}
		if (reasbuf != NULL) {
			free(reasbuf);
		}
		return 0;
	}
	rpc_set_error(rpc, "No matching pdu found for xid:%d", xid);
	zdr_destroy(&zdr);
	if (reasbuf != NULL) {
		free(reasbuf);
	}
	return -1;
}
Commit	Line	Data
84004dbf RS	1	/*
	2	Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
	3
	4	This program is free software; you can redistribute it and/or modify
	5	it under the terms of the GNU Lesser General Public License as published by
	6	the Free Software Foundation; either version 2.1 of the License, or
	7	(at your option) any later version.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU Lesser General Public License for more details.
	13
	14	You should have received a copy of the GNU Lesser General Public License
	15	along with this program; if not, see <http://www.gnu.org/licenses/>.
	16	*/
72897005 RS	17	#ifdef HAVE_CONFIG_H
	18	#include "config.h"
	19	#endif
	20
108c622a RS	21	#ifdef AROS
	22	#include "aros_compat.h"
	23	#endif
	24
a8a1b858 M	25	#ifdef WIN32
a8a1b858 M	26	#include "win32_compat.h"
6874f61e	27	#else
84004dbf	28	#include <strings.h>
a8a1b858	29	#endif/WIN32/
6874f61e	30
72897005 RS	31	#ifdef HAVE_NETINET_IN_H
	32	#include <netinet/in.h>
	33	#endif
	34
7057e733 RS	35	#ifdef HAVE_SYS_SOCKET_H
	36	#include <sys/socket.h>
	37	#endif
	38
6874f61e	39	#include <stdio.h>
98f5fee8	40	#include <stdlib.h>
763cd6e3	41	#include <string.h>
f3a75078	42	#include <assert.h>
a669857d	43	#include <errno.h>
84004dbf	44	#include "slist.h"
763cd6e3	45	#include "libnfs-zdr.h"
84004dbf RS	46	#include "libnfs.h"
	47	#include "libnfs-raw.h"
	48	#include "libnfs-private.h"
	49
763cd6e3	50	struct rpc_pdu rpc_allocate_pdu(struct rpc_context rpc, int program, int version, int procedure, rpc_cb cb, void *private_data, zdrproc_t zdr_decode_fn, int zdr_decode_bufsize)
84004dbf RS	51	{
	52	struct rpc_pdu *pdu;
	53	struct rpc_msg msg;
	54
f3a75078	55	assert(rpc->magic == RPC_CONTEXT_MAGIC);
84004dbf RS	56
	57	pdu = malloc(sizeof(struct rpc_pdu));
	58	if (pdu == NULL) {
1896d37b	59	rpc_set_error(rpc, "Out of memory: Failed to allocate pdu structure");
84004dbf RS	60	return NULL;
84004dbf RS	61	}
ea98629a	62	memset(pdu, 0, sizeof(struct rpc_pdu));
84004dbf RS	63	pdu->xid = rpc->xid++;
	64	pdu->cb = cb;
	65	pdu->private_data = private_data;
763cd6e3 RS	66	pdu->zdr_decode_fn = zdr_decode_fn;
763cd6e3 RS	67	pdu->zdr_decode_bufsize = zdr_decode_bufsize;
84004dbf	68
763cd6e3	69	zdrmem_create(&pdu->zdr, rpc->encodebuf, rpc->encodebuflen, ZDR_ENCODE);
a1992412	70	if (rpc->is_udp == 0) {
763cd6e3	71	zdr_setpos(&pdu->zdr, 4); /* skip past the record marker */
a1992412	72	}
84004dbf	73
ea98629a	74	memset(&msg, 0, sizeof(struct rpc_msg));
aab6538b RS	75	msg.xid = pdu->xid;
	76	msg.direction = CALL;
	77	msg.body.cbody.rpcvers = RPC_MSG_VERSION;
	78	msg.body.cbody.prog = program;
	79	msg.body.cbody.vers = version;
	80	msg.body.cbody.proc = procedure;
	81	msg.body.cbody.cred = rpc->auth->ah_cred;
	82	msg.body.cbody.verf = rpc->auth->ah_verf;
84004dbf	83
763cd6e3 RS	84	if (zdr_callmsg(&pdu->zdr, &msg) == 0) {
	85	rpc_set_error(rpc, "zdr_callmsg failed");
	86	zdr_destroy(&pdu->zdr);
84004dbf RS	87	free(pdu);
	88	return NULL;
	89	}
	90
	91	return pdu;
	92	}
	93
f3a75078	94	void rpc_free_pdu(struct rpc_context rpc, struct rpc_pdu pdu)
84004dbf	95	{
f3a75078 RS	96	assert(rpc->magic == RPC_CONTEXT_MAGIC);
f3a75078 RS	97
84004dbf RS	98	if (pdu->outdata.data != NULL) {
	99	free(pdu->outdata.data);
	100	pdu->outdata.data = NULL;
	101	}
	102
763cd6e3 RS	103	if (pdu->zdr_decode_buf != NULL) {
	104	zdr_free(pdu->zdr_decode_fn, pdu->zdr_decode_buf);
	105	free(pdu->zdr_decode_buf);
	106	pdu->zdr_decode_buf = NULL;
84004dbf RS	107	}
84004dbf RS	108
763cd6e3	109	zdr_destroy(&pdu->zdr);
df5af25f	110
84004dbf RS	111	free(pdu);
	112	}
	113
	114
	115	int rpc_queue_pdu(struct rpc_context rpc, struct rpc_pdu pdu)
	116	{
	117	int size, recordmarker;
	118
f3a75078 RS	119	assert(rpc->magic == RPC_CONTEXT_MAGIC);
f3a75078 RS	120
763cd6e3	121	size = zdr_getpos(&pdu->zdr);
84004dbf	122
a669857d RS	123	/* for udp we dont queue, we just send it straight away */
a669857d RS	124	if (rpc->is_udp != 0) {
763cd6e3	125	// XXX add a rpc->udp_dest_sock_size and get rid of sys/socket.h and netinet/in.h
a669857d RS	126	if (sendto(rpc->fd, rpc->encodebuf, size, MSG_DONTWAIT, rpc->udp_dest, sizeof(struct sockaddr_in)) < 0) {
	127	rpc_set_error(rpc, "Sendto failed with errno %s", strerror(errno));
	128	rpc_free_pdu(rpc, pdu);
	129	return -1;
	130	}
	131	SLIST_ADD_END(&rpc->waitpdu, pdu);
	132	return 0;
	133	}
	134
84004dbf	135	/* write recordmarker */
763cd6e3	136	zdr_setpos(&pdu->zdr, 0);
84004dbf	137	recordmarker = (size - 4) \| 0x80000000;
763cd6e3	138	zdr_int(&pdu->zdr, &recordmarker);
84004dbf RS	139
	140	pdu->outdata.size = size;
	141	pdu->outdata.data = malloc(pdu->outdata.size);
	142	if (pdu->outdata.data == NULL) {
	143	rpc_set_error(rpc, "Out of memory. Failed to allocate buffer for pdu\n");
	144	rpc_free_pdu(rpc, pdu);
	145	return -1;
	146	}
	147
	148	memcpy(pdu->outdata.data, rpc->encodebuf, pdu->outdata.size);
	149	SLIST_ADD_END(&rpc->outqueue, pdu);
	150
	151	return 0;
	152	}
	153
	154	int rpc_get_pdu_size(char *buf)
	155	{
	156	uint32_t size;
	157
	158	size = ntohl((uint32_t )buf);
	159
84004dbf RS	160	return (size & 0x7fffffff) + 4;
	161	}
	162
763cd6e3	163	static int rpc_process_reply(struct rpc_context rpc, struct rpc_pdu pdu, ZDR *zdr)
84004dbf RS	164	{
	165	struct rpc_msg msg;
	166
f3a75078 RS	167	assert(rpc->magic == RPC_CONTEXT_MAGIC);
f3a75078 RS	168
ea98629a	169	memset(&msg, 0, sizeof(struct rpc_msg));
aab6538b	170	msg.body.rbody.reply.areply.verf = _null_auth;
763cd6e3 RS	171	if (pdu->zdr_decode_bufsize > 0) {
	172	if (pdu->zdr_decode_buf != NULL) {
	173	free(pdu->zdr_decode_buf);
1b9917b8	174	}
763cd6e3 RS	175	pdu->zdr_decode_buf = malloc(pdu->zdr_decode_bufsize);
	176	if (pdu->zdr_decode_buf == NULL) {
	177	rpc_set_error(rpc, "zdr_replymsg failed in portmap_getport_reply");
	178	pdu->cb(rpc, RPC_STATUS_ERROR, "Failed to allocate buffer for decoding of ZDR reply", pdu->private_data);
84004dbf RS	179	return 0;
84004dbf RS	180	}
763cd6e3	181	memset(pdu->zdr_decode_buf, 0, pdu->zdr_decode_bufsize);
84004dbf	182	}
aab6538b RS	183	msg.body.rbody.reply.areply.reply_data.results.where = pdu->zdr_decode_buf;
aab6538b RS	184	msg.body.rbody.reply.areply.reply_data.results.proc = pdu->zdr_decode_fn;
84004dbf	185
763cd6e3 RS	186	if (zdr_replymsg(zdr, &msg) == 0) {
763cd6e3 RS	187	rpc_set_error(rpc, "zdr_replymsg failed in portmap_getport_reply");
84004dbf	188	pdu->cb(rpc, RPC_STATUS_ERROR, "Message rejected by server", pdu->private_data);
763cd6e3 RS	189	if (pdu->zdr_decode_buf != NULL) {
	190	free(pdu->zdr_decode_buf);
	191	pdu->zdr_decode_buf = NULL;
84004dbf RS	192	}
	193	return 0;
	194	}
aab6538b	195	if (msg.body.rbody.stat != MSG_ACCEPTED) {
84004dbf RS	196	pdu->cb(rpc, RPC_STATUS_ERROR, "RPC Packet not accepted by the server", pdu->private_data);
	197	return 0;
	198	}
aab6538b	199	switch (msg.body.rbody.reply.areply.stat) {
84004dbf	200	case SUCCESS:
763cd6e3	201	pdu->cb(rpc, RPC_STATUS_SUCCESS, pdu->zdr_decode_buf, pdu->private_data);
84004dbf RS	202	break;
	203	case PROG_UNAVAIL:
	204	pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Program not available", pdu->private_data);
	205	break;
	206	case PROG_MISMATCH:
	207	pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Program version mismatch", pdu->private_data);
	208	break;
	209	case PROC_UNAVAIL:
	210	pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Procedure not available", pdu->private_data);
	211	break;
	212	case GARBAGE_ARGS:
	213	pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: Garbage arguments", pdu->private_data);
	214	break;
	215	case SYSTEM_ERR:
	216	pdu->cb(rpc, RPC_STATUS_ERROR, "Server responded: System Error", pdu->private_data);
	217	break;
	218	default:
	219	pdu->cb(rpc, RPC_STATUS_ERROR, "Unknown rpc response from server", pdu->private_data);
	220	break;
	221	}
	222
	223	return 0;
	224	}
	225
	226	int rpc_process_pdu(struct rpc_context rpc, char buf, int size)
	227	{
	228	struct rpc_pdu *pdu;
763cd6e3	229	ZDR zdr;
d678b73e	230	int pos, recordmarker = 0;
84004dbf	231	unsigned int xid;
d678b73e	232	char *reasbuf = NULL;
84004dbf	233
f3a75078 RS	234	assert(rpc->magic == RPC_CONTEXT_MAGIC);
f3a75078 RS	235
763cd6e3	236	memset(&zdr, 0, sizeof(ZDR));
84004dbf	237
763cd6e3	238	zdrmem_create(&zdr, buf, size, ZDR_DECODE);
a669857d	239	if (rpc->is_udp == 0) {
763cd6e3 RS	240	if (zdr_int(&zdr, &recordmarker) == 0) {
	241	rpc_set_error(rpc, "zdr_int reading recordmarker failed");
	242	zdr_destroy(&zdr);
a669857d RS	243	return -1;
a669857d RS	244	}
d678b73e	245	if (!(recordmarker&0x80000000)) {
763cd6e3	246	zdr_destroy(&zdr);
d678b73e RS	247	if (rpc_add_fragment(rpc, buf+4, size-4) != 0) {
	248	rpc_set_error(rpc, "Failed to queue fragment for reassembly.");
	249	return -1;
	250	}
	251	return 0;
	252	}
84004dbf	253	}
d678b73e RS	254
	255	/* reassembly */
	256	if (recordmarker != 0 && rpc->fragments != NULL) {
	257	struct rpc_fragment *fragment;
574095b9	258	uint32_t total = size - 4;
d678b73e RS	259	char *ptr;
d678b73e RS	260
763cd6e3	261	zdr_destroy(&zdr);
d678b73e RS	262	for (fragment = rpc->fragments; fragment; fragment = fragment->next) {
	263	total += fragment->size;
	264	}
	265
	266	reasbuf = malloc(total);
	267	if (reasbuf == NULL) {
	268	rpc_set_error(rpc, "Failed to reassemble PDU");
	269	rpc_free_all_fragments(rpc);
	270	return -1;
	271	}
	272	ptr = reasbuf;
	273	for (fragment = rpc->fragments; fragment; fragment = fragment->next) {
	274	memcpy(ptr, fragment->data, fragment->size);
	275	ptr += fragment->size;
	276	}
	277	memcpy(ptr, buf + 4, size - 4);
763cd6e3	278	zdrmem_create(&zdr, reasbuf, total, ZDR_DECODE);
d678b73e RS	279	rpc_free_all_fragments(rpc);
	280	}
	281
763cd6e3 RS	282	pos = zdr_getpos(&zdr);
	283	if (zdr_int(&zdr, (int *)&xid) == 0) {
	284	rpc_set_error(rpc, "zdr_int reading xid failed");
	285	zdr_destroy(&zdr);
d678b73e RS	286	if (reasbuf != NULL) {
	287	free(reasbuf);
	288	}
84004dbf RS	289	return -1;
84004dbf RS	290	}
763cd6e3	291	zdr_setpos(&zdr, pos);
84004dbf RS	292
	293	for (pdu=rpc->waitpdu; pdu; pdu=pdu->next) {
	294	if (pdu->xid != xid) {
	295	continue;
	296	}
a669857d RS	297	if (rpc->is_udp == 0 \|\| rpc->is_broadcast == 0) {
	298	SLIST_REMOVE(&rpc->waitpdu, pdu);
	299	}
763cd6e3	300	if (rpc_process_reply(rpc, pdu, &zdr) != 0) {
1896d37b	301	rpc_set_error(rpc, "rpc_procdess_reply failed");
84004dbf	302	}
763cd6e3	303	zdr_destroy(&zdr);
a669857d RS	304	if (rpc->is_udp == 0 \|\| rpc->is_broadcast == 0) {
	305	rpc_free_pdu(rpc, pdu);
	306	}
d678b73e RS	307	if (reasbuf != NULL) {
	308	free(reasbuf);
	309	}
84004dbf RS	310	return 0;
84004dbf RS	311	}
1896d37b	312	rpc_set_error(rpc, "No matching pdu found for xid:%d", xid);
763cd6e3	313	zdr_destroy(&zdr);
d678b73e RS	314	if (reasbuf != NULL) {
	315	free(reasbuf);
	316	}
84004dbf RS	317	return -1;
	318	}
	319